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Phys. Rev. Lett. 102, 020503 (2009) [4 pages]

Perfect Mirror Transport Protocol with Higher Dimensional Quantum Chains

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Gerardo A. Paz-Silva1, Stojan Rebić1, Jason Twamley1, and Tim Duty2
1Centre for Quantum Computer Technology, Macquarie University, Sydney, NSW 2109, Australia
2Department of Physics, University of Queensland, St Lucia, QLD 4072, Australia

Received 30 May 2008; published 13 January 2009

A globally controlled scheme for quantum transport is proposed. The scheme works on a 1D chain of nearest neighbor coupled systems of qudits (finite dimension), or qunats (continuous variable), taking any arbitrary initial quantum state of the chain and producing a final quantum state, which is perfectly spatially mirrored about the midpoint of the chain. As a particular novel application, the method can be used to transport continuous variable quantum states. A physical realization is proposed where it is shown how the quantum states of the microwave fields held in a chain of driven superconducting coplanar waveguides can experience quantum mirror transport when coupled by switchable Cooper pair boxes.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.020503
DOI:
10.1103/PhysRevLett.102.020503
PACS:
03.67.Hk, 03.67.Lx, 05.50.+q